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Property, Plant and Equipment - Schedule of Information Regarding our Asset Retirement Obligations, or AROs (Details)
$ in Millions
6 Months Ended
Jun. 30, 2025
USD ($)
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]  
Balance at beginning of period $ 265
Liabilities incurred 0
Revisions in estimated cash flows 2
Liabilities settled (3)
Accretion expense 12
Balance at end of period $ 276